Saw-gumming device



Jan. 9, 1923.. 1,441,825,

IVI. BINDAS. SAW GUMMING DEVICE.

FILED JULY 28. I921.

.l isli lnllttw iil in i UKURNQFYL, 0F

MIONJD, JENIDIAJSTA.

ldiltilliT-G'Hlllfttlltllft DEVICE.

Application filed July 26,

To all whom it may canoe 2%:

Be it known that l. Minn BINDAS, a citizen ot the United States ofAmericzn residingat East lFlainmond in the county of Lake and State oflindiana, have invented certain new and useful improvements inSaw-Summing Devices ot which the following is a specification.

This invention relates to certain new and useful improvements in sawguinminp; devices of that type involving a vertically slidable gurniningdie carrying plung r having a manually operable actuating lever.

The primary object of the invent-ion is to generally simplify andin'iprove devices of the above kind whereby saws may be readily gunimedin an expeditious manner.

Another object of the invention is to provide a saw gumn'iinp; devicewherein the male die is provided with a simple and durable form ofactuating mechanism, the members of which are scparalzily connected sothat any desired. ones otthe same may be renewed when broken or worn.

\lther objects will appear the nature or": the invention is betterunderstood and the same consists in the novel torrn coinbination andarrangement of parts herinatter more iltully described and shown in theaccompanying drawing, in which like desigp hating characters refer tocorresponding parts throughout the several. views.

lln the drawing,

Figure 1 is a side elevational view oi? a saw gumining deviceconstructed in accord.- ance with the present invention,

Figure 2 is a top plan view thereof,

Figure 3 is a view partly in front elevation and partly in verticalsection along; line till-Jill. of: liigure l, and

Figure 4; is a. ho izontal sectional ricw taken on line'lV" i ot liinureE5 and partly broken away with aportiou ot a saw shown operatively dis'ioi-icd upon the bed plate ot the device.

l-leierrinpmore in detail. to the several views, the invention embodiesa. one-piece misting: including a base plate 5 adapted to be securedupon a suitable support such as a bench top a bed plate 6 above the baseplate 5 and connected to the latter by an integral intermediate portion'7, and a rguide post 8 extending; upwardly from the bed plate Gandhaving a cut out at its lower 1921. Florin]. 1W0. 46%,125).

end as at 9 so to overhang the bed plate a clearly shown in Figure 1.The plates 5 and 6 are. preferably at right angles and the 1' plate isprovided with a central transverse groove 10 oi dove-tail form forren1ovable reception for a similar form of female grunnninp; die 11.which may be secured in place by means of a suitable setor stud screw hits opening; alined with a male die 13 w .ich may be suitably reinovablyattached to the lower end of a plunger 14 which is vertically slidablein the central bore of the guide post 8. The rod 14L is sutlicientlylong to project upwardly beyond the upper end of the post 8 and thisprojecting portion of the rod l-fl extends freely between the legs 15 otthe bifurcated end of a suitable ha nd lever 16, which legs 15 havetheir free ends pivoted by means oi a bolt 17 or the like to ear 18provided on the forward upper corner of the post 8. Each leg 15 isprovided with a slot 19 in which the upper end of a link 20 is pivotedupon a screw 21 which extends through said leg and the two screws 21 areprovided with screw driver kerts which are engaged by the flattened endsof a ei-shaped clip 22 which spans the biturcated end oi": the lever 16and is adapted to prevent unscrewing of L1Cl screws 21 accidentally. Theil -shaped may, however. be readily removed permitting); intentionalremoval of the screws 21. The guide post 8 provided with a pair ofalined vertically elongated slots 23 intermediate its ends andcommunieating with the bore of said guide post, and the lower ends orthe links 20 are pivoted upon bolt 24 which extends through the rod 14:and the slots 23, suitable spacing); eves beings; placed upon the bolt24 between the links 20 and the rod 14 so as to maintain the links 20parallel and prercut wol'ibliug oi the sauna. The rod 14 is providedwith ya longitudinal series of opeuin.v 9,6 tor selective r :eptiou ofthe bolt sotliat the throw oi? the lever '16 and rod id may beadjustably varied to suit the requirements for different saws to beoperated on and as the screws 21 and bolts are readily removable, itwill be seen that the links 20, rod li and lever 16 may be renewed. fromtime to time as found necessary.

A depth gage 27 in the term of a flat plate with straight edge 28 issecured flatly upon the upper surface of the bed plate 6 by means ofscrews or bolts 29 which extend through elongated slots 30 in rearuanllyextending tongues 31 carried by said 27 and which also extend throughsi'iitable openings in the bed plate (5. In this manner, the straightedge 28 is arranged longitudinally of the bed plate 6 and the gage 27 isfastened to the bed plate so as to be adjust able transversely of thelatter, thereby adjustably raging the depth of the cut made by the maledie 13 when the teeth of the saw A are engaged with said straight edgeii -"'5 as shown in Figure &. The depth gage i2? is preferably disposedat one side or the guide post, and a saw adjusting guide and indicator32 is preferably secured to the base plate 6 at the other side ot thepost 8, said guide. and indicator comprising a plate flatly securedagainst the upper surface ot the bed plate 6 and having a forwardlyprojecting tooth 33 arranged to project into the space between adjacentteeth or the saw A when the latter is properly disposed to be gummed;The guide and indicator 32 is pr ferably adjustably attached to the bedplate 6 for movement, longitudinally of said bed plate by means of abolt 34 or the like which extends through a suitable opening in theplate portion of said guide and indicator and also through alongitudinally elongated slot 35 provided in the bed plate 6. By varyingthedistance between the male die 13 and the tooth 33, the device may beinane to accommodate saws wherein the teeth spacing varies and byengaging the tooth 33 between successive teeth out the saw. said saw maybe expeditiously gununed without liability of missing any particularnotch of said saw and with the assurance that the saw teeth will. be inproper relation with the male die 13 when the latter is operated.

When using the device, the depth gage 28 and the adjustment gage andindicator are properly set and the saw plate to be gummed is placedflatly on the bed plate 6 as shown in Figure 4 with the points of thesaw plate teeth bearing against the straight edge 28 and with the tooth33 engagedbetween adjacent teeth of the saw plate. The male die 13 isthen depressed through the medium of thehand lever 16 and in conjunctionwith the female die 13, it will shear or cleanly out the saw plate andthereby deepen and our large the space between adjacent teeth.Thisoperation is repeated with reference to each of thespaces-of the sawplate. said plate being of course properly adjusted suln sequent toeachgumming operation.

From the foregoing:description. it be lieved that. the. construction.and operation. as wellas the advantages of the present invention will.be rea.dilv. understood and, appreeiated those skilled in theart.

inor changes may e made wilhoul do ing from the spirit and scope o l'the iuvcntion as claimed.

lVhat is, claimed as new is:

l. A saw guunning device including a base plate adapted to be securedupon a suitable support and integrally with a bed plate lisposedthereabove. a guide post having a central bore ar-d integrally connectedwith the bed and base plates said guide post. being cut out at its lowerend portion so as to overhang said bed plate, a female guinuiiug dieremovably secured to the bed plain. a \'(lll cally reciprocablc rodmounted in the bow or said guide post and, liming :1 walldie upon itslower end arranged lo ('(Hljltl'dli' with said iemale die a; well asprojecting upwardly beyond the l pcr cud olf said guide post. said guideposl being pro vided with aliued vertically elongated slots in the sidestliereol' communicating with th sauir. a lever lulv e bore ol the ing al,,".';'ureatei,l cud poi-lion lwlwwr the ol' which the upper end of u'drod :l rocly extends. the tree ends of said leus being pivoted to theupper end ol said guide post. a pair olf links, each having); its upperend pivoted to one leg ol? the bifurcated portion (it said hand leverand dc wudiu; at e or said guide post. a bolt projecting One, 53 tlirouh said. rod and thc mi-ticail elongated slots of the guide post andhaving the lower ends of said links pivoted thereon and means to permitadjustment ol said bolt at Various points between the ends o l said rodwhereby the throw ol said lever is varied.

2. A saw gunnuing device including a base plate pied to be secured upona suit able support and integrally with a bed plate disposedtliereabove. a guide post having a central bore and integrally connoclodwith the bed and base plates, said guide post bcing cut out at its lowerend portion so as to overhang said bed plate. a 'lcmale gunnning diereino *ablv secured to the bud plate. a mrtieally reciprocablc rodmounted in the bore of said guide post and having a male die upon itslow .1" end ar united to cooperate with said female die as well asprojecting upwardly beyond the upper end of said guide post said guidepost being provided with alined vertically elongated slots in the sidesthereoi cmmnuuicating with the bore of the same, a lever having a.bil'urculcd cud pox lion between the legs o which the uppmcud ofsaid rodilfreely tcmls. the two ends of said legs being pi voted to the upperend of said de post, a pair o l linlcs. each haw ing its upper endpivoted to one leg of the bifurcated portion of said hand lever anddepending at one side of: said guide post. a bolt projecting throughsaid rod and the rtically elongated slots of: the guide post and havingthe lowe ends of said links piv oted thereoin means to permitadjustmentot till lll 'i llll lllll lilll atinas said belt at variouspoints between the ends of said rod whereby the throw of said. lever isvaried, the legs of the bifurcated. portion of the lever being providedwith slots in which the upper ends of said links are pivoted, andspacing sleeves arranged upon said bolt between the lower ends of saidlinks and said rod.

3. A saw giinnning devise including a base plate adapted to he securedupon a suitable support and integrally with a bed plate disposedthereabove, a guide post having a central bore and integrally connectedwith the bed and base plates, said guide post being cut out at its lowerend portion so as to overhang said bed plate, a female gumrning dierernovably secured to the bed plate, a vertically reciprocable rodmounted in the bore of said guide post and having a male die; upon itslower end arranged to cooperate with said female die as we 1 asprojecting upwardly beyond the upper end of said guide post, said guidepost being provided with alined vertically elongated slots in the sidesthereof communicating with the bore of the same, a lever having abifurcated end portion between the legs of which the upper end of saidrod freel; extends, the free ends of said legs being pivoted to theupper end of said guide post, a pair of links. each having its upper endpivoted to one leg of the bifurcated portion of said hand lever anddepending at one side of said guide post, a bolt projecting through saidrod and the vertically elongated slots of the guide post and having thelower ends of said links pivoted thereon and n'ieans to permitadjustment of said bolt at various points between the ends of said rodwhereby the throw of said lever is varied, the means for pivotallyconnecting the upper ends of the links to the lever comprising removablescrews having notched heads, and a ii-shaped clip having flattened endsengaging in the notches of said screws to prevent accidental unscrewingof said screws.

4. In a saw gunnning device, a bed plate provided with a female die, anupright guide post having a vertically reciprocable rod slidabletherethrough and said rod having a male die upon the lower end thereofarranged to cooperate with said female die, a bifurcated lever with thelegs of its bifurcated portion pivoted to the upper end of said guidepost and with the upper end of the rod freely extending between saidlegs, said guide post being provided with vertically elongated slots, apair of links arranged atopposite sides of said guide post and havingtheir upper ends pivoted to the legs of the lever and their lower endspivoted to said rod, the pivotal connections between the links and therod, and between the post and the lever permitting removal of theseparts for renewal purposes, and the pivotal connection of the links withthe rod permitting adjustment of the links relative to said rod wherebythe throw of the lever is made variable.

in testimony whereof I affix my signature.

MIKE BINDAS.

